COIT, Mary C

Does anyone have any info on COIT, Mary C. I know she married John Damon Eldredge (11 Aug 1859 in Mansfield, Tolland, CT) and had 3 children :Christie (b. @1861), Helen (b. @ 1863), and Earl Coit (b. @1865 d. @1918) all children were apparantly born in Mansfield, Tolland, CT. I am interested to know her DOB & DOD and also who her parents were and if she had any siblings. Any info would be greatly appreciated. Thank you.